Search on: GESTATIONAL SACS 
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Descriptor English:   Gestational Sac 
Descriptor Spanish:   Saco Gestacional 
Descriptor Portuguese:   Saco Gestacional 
Synonyms English:   Gestation Sac
Gestation Sacs
Gestational Sacs
Sac, Gestation
Sac, Gestational
Sacs, Gestation
Sacs, Gestational  
Tree Number:   A16.535
Definition English:   Round-shaped structure usually located in the upper fundus of the UTERUS in early pregnancy. It comprises EMBRYO; AMNIOTIC FLUID; and YOLK SAC. It is visible in PRENATAL ULTRASONOGRAPHY by the fifth week of pregnancy. Its size is often used to determine and monitor GESTATIONAL AGE; FETAL GROWTH; and PREGNANCY COMPLICATIONS. 
History Note English:   2011 
Allowable Qualifiers English:  
AB abnormalities AH anatomy & histology
BS blood supply CH chemistry
CY cytology DG diagnostic imaging
DE drug effects EM embryology
EN enzymology GD growth & development
IM immunology IN injuries
IR innervation ME metabolism
MI microbiology PS parasitology
PA pathology PH physiology
PP physiopathology RE radiation effects
SU surgery TR transplantation
UL ultrastructure VI virology
Record Number:   53864 
Unique Identifier:   D058746 

Occurrence in VHL: 		 

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DeCS